Tom was the second _______this maths problem.A.worked out B.works_英语解答

Tom was the second _______this maths problem.
A.worked out B.works out C.working out D.to work out
问为什么

人气：190 ℃　时间：2019-10-19 23:37:43

解答

D.to work out
序数词 +（名词）+to do sth ,不定式to do sth做定语,修饰前面的名词的.有时名词可以省略,这里省略了名词